點流行率 的英文怎麼說

中文拼音 [diǎnliúhánglǜ]
點流行率 英文
point prevalence rate
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 行 : 行Ⅰ名詞1 （行列） line; row 2 （排行） seniority among brothers and sisters:你行幾? 我行三。where...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 流行 : prevalent; popular; fashionable; rage; run; in vogue
  1. Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa

    本文首先介紹並分析了橢圓曲線密碼體制的優點及研究現狀；其次研究了橢圓曲線密碼體制的基本理論；第三，分析了橢圓曲線密碼的安全性並介紹了密鑰共享，加密，數字簽名等橢圓曲線密碼體制；第四，深入研究了特徵為2的有限域f _ 2m中的元素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法，並對hankerson等人提出的多項式基下的乘法運算的快速演算法作了改進，而且在實驗的基礎上不僅分析研究了f _ 2m域中元素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能，還對這兩種基表示下的f _ 2m域中元素運算效率的優劣作了比較和研究，所得的結論可供在實現橢圓曲線密碼體制時參考；第五，研究了目前流行的計算橢圓曲線標量乘法的快速演算法，同時改進了固定基點梳形法，提高了整個系統的速度，並在實驗的基礎上分析研究了流行演算法的優劣；第六，實現了基於f _ 2m的橢圓曲線密碼體制的演算法庫，在我們的演算法庫中只需稍微改變便能實現基於任意尺寸的f _ 2m上的ecdh ， eces ， ecdsa等橢圓曲線密碼體制；第七，實現了兩條安全橢圓曲線上的橢圓曲線密碼體制，包括ecdh ， eces ， ecdsa 。
  2. On the base of studying imaging theory of lens, the imaging theory of laser confocal scanning microscopy was analyzed in detail in this paper, and the advancement of that the optical fiber was applied to the system was described ; on the base of completed the demonstration for whole project, the experiment scheme was designed ; the relationship between the main parameters of key devices and the resolution was deduced, and the requirements of coupling efficiency and vignetting effects to optical system was analyzed ; the design of optical system and the planar scanning controlling circuit was completed ; a new method was put forward to resolved the inherent non - liner scanning problem of the galvanometer scanner by using software liner controlling in circuit design, and the perfect planar scanning was realized ; at last the low noise, high multiple and non - distortion amplify circuit of photoelectric detector was completed

    本文在透鏡成像理論的基礎上，系統、深入地分析了共焦掃描顯微成像的機理，論述了應用單模光纖的激光共焦掃描顯微成像系統的優點；進行了總體方案的論證，並設計確定了單模光纖激光共焦掃描顯微成像系統的總體方案；從理論上推導分析了解析度要求與試驗系統中相關器件主要參數之間的關系，分析了系統耦合效率和漸暈現象對光學系統的設計要求；完成了方案中光學系統和二維掃描控制電路的設計，並在電路設計中採用了用軟體解決檢流計式光學掃描器（振鏡）非線性問題的新方法，能夠實現較為理想的二維模擬掃描；完成了高增益、低噪聲和低失真的探測接收系統的設計和調試。
  3. Seen from the experiment result, it is clear that the deposited coating obtained with the trivalent chromium electrodepositing method we use is smooth, homogeneous, dense, and has good unti - erosive ability, high stiffness. the color ol ihe deposited coaling ol irivalent chromium is similar with that of hexavalent chromium. further more, this process has a good ability of homogeneous and deep depositing with simple facility, high current efficiency, and wide working current flow and even more it avoids environmental pollution

    實驗結果表明，本文採用的三價鉻鍍鉻方法能電鍍出鍍層光滑、均勻、緻密、抗蝕性好、硬度高的鍍層，而且解決了鍍層顏色的問題，使三價鉻鍍層不僅具有現行六價鉻鍍層的天藍色光澤，同時還具有電流效率高、均鍍能力與深鍍能力好、工作電流密度寬、設備簡單、無環境污染等特點。
  4. The emphasis of this thesis lie on the analysis of the factors that may affect the requirement of international seaman. through analyzing numbers of ship / ship ' s technique condition and the rate of seaman ' s loss, the forecast model of international seaman ' s requirement can be created, which is mostly dependent on the correct forecast about the numbers of ship in the whole world. after the analysis of international seaman ' s market, the thesis then analyzed the seaman ' s supplying condition in china

    本文重點對于國際船員勞務市場的需求因素進行了分析，通過對船舶數量、船舶技術狀況、船員流失率（減員率）等對國際船員需求的影響分析，並重點圍繞船舶數量是決定國際船員需求數量的直接因素，通過對於世界海船艘數的預測，並根據相關的函數關系，確定了有關國際船員需求數量預測的模型。
  5. The paper establishes mathematics model of electromagnetic heating system of eddy current field and temperature field, and gives corresponding discrete format with elements as eight nodes, hexahedron equal cell, through calculating eddy - current field to gain the internal heat source that the temperature field needed, to use discrete method to solve the problem of induction - heating part ' s temperature field by axial symmetrical electromagnetic, and then to analyze the characteristic of instantaneous temperature field

    本文建立了電磁加熱系統的渦流場和溫度場間接耦合的數學模型，分析了不同頻率下渦流和溫度的分佈情況，並以八節點六面體等參元為例給出了渦流場對應的離散格式，通過計算渦流場獲得溫度場所需要的內熱源強度，加熱部件的溫度場以軸對稱格式進行離散求解，並對瞬態溫度場有限單元法的求解特點進行了分析。
  6. Chapter ii : latent capacity and present conditions of water resource. first, the author introduced the total amount and distribution of water resource in the east and central area of gansu, and then discussed the current utilization and contradiction between supply and demand of water resource. and last, the author posed the measures and countermeasures of exploiting water resource. chapter iii : latent capacity and present conditions of land resource. first the author introduced the total amount and distribution of land resource. and then discussed the current conditions utilization and latent capacity of land resource

    對東中部地區的水資源總量、分佈和特點進行定量和定性的分析，以灌區水資源利用及供需矛盾為突破口，對水資源潛力開發的幾個關鍵問題進行了分析：加強與水資源相關的基礎問題的研究；強化水資源危機的意識，建立節水工農生產體系；建立流域水資源統一管理機構；強化節水農業科技成果的推廣轉化；逐步推行噴、微灌高新節水技術；充分利用化學調控技術提高作物抗旱性和水分利用效率；大力發展以集雨節灌技術為核心的集水農業。
  7. Based on the theory of mfl and a study on the signal characteristics ofac - mfl and ect : on one hand, it expouded the flaw identification model of “ slope ratio ” todetect the defects in panel, rob or pipeline ; on the other hand, the flaw - depth measurementmethod based on the characteristical frequency were used in ac - mfl. the application ofac - mfl was realized, and it showed the accordance of defect detection for these twotechniques

    從其檢測原理出發，在與上述渦流檢測信號特點進行比較的基礎上，一方面，利用「斜率比值」識別模型實現了對板材、管材、棒材等表面缺陷的檢測;另一方面，利用交流信號的信息實現了基於拐點頻率的深度測量方法在該技術中的應用。
  8. Because of the different context of program and channel, most of the bit - stream rates of programs video are different. when one tv station relays other ' s program, or when we convert program from hfc to vod, tcp / ip system, it is need to convert the bit - stream rate which could not meet the need of local channel

    由於節目內容不同、通道不同，數字電視系統中節目流碼率是千差萬別的，當一個電視臺轉播其它電視臺的節目之前，或者將節目轉播到點播電視系統、網路電視系統中時，如果本地通道不能滿足帶寬要求，則必需進行碼率轉換。
  9. And then, some improvements have been made on the old single tube pressure wave refrigerator experimental system. the experimental research, such as the ratio of gas charge time to gas exhaust time ( ), the frequency of the jet flow ( f ), the ratio of the expansion ( ), the length of the tube ( l ) and the heat transfer condition, has been carried out on the improved experimental system. the results were drawn as the following : the refrigerating efficiency will be heightened by augmenting when is in 0. 0405 to 0. 1842 ; the highest cooling efficiency will be

    實驗考察了有關因素對製冷效率和最佳射流頻率（ fopt ）的影響並進行了理論分析，結果表明，在= 0 . 0405 ~ 0 . 1842范圍內，製冷效率（ ）隨的增大而提高;隨射流頻率（ f ）的變化出現多個峰值，在本文實驗參數范圍內下，第二個峰值點的效率比第一個峰值點高;隨著膨脹比（ ）的增大，和fopt都略有增大，且低下的增幅比高下的大;強化管外換熱，可使fopt降低、明顯提高。
  10. By the " specific revealing ", the paper not only has got a clear command of the threads of developing stages of management thoughts in the western world, but also has highlighted the characteristics of main schools of management at different times, based on which the four stages of management thought s are divided, including the efficiency philosophy of the classic management theories with the objectivity on the supremacy, the behavior philosophy of the neo - classic management theories with the subjectivity on the supremacy, the system philosophy of modern management theories with the unity of the subjectivity and objectivity, the originality - seeking philosophy of post - modern management theories with the returning of the subjectivity

    在具體的再現中，不僅疏通了西方管理發展的脈絡，而且鮮明的顯現了不同西方主流管理學派的特徵，而這些不同的本質特徵又自然而然的將管理思想史斷界為前後相繼的四個階段：古典管理論階段為客體至上的效率哲學；新古典管理階段為主體至上的行為哲學；現代管理階段為主客體統一的系統哲學；后現代管理論階段為主體回歸的創新哲學。這種以哲學特點進行的劃界，相對以往管理思想史是一個創建。
  11. Besides, there are great deals of other questions, which cause various kinds of mechanism of corporate governance unable to play a effective role. at the same time, the article make a deeply analysis to the reasons. finally, the article put forward some advises : reducing the state - owned stock progressively, foster the institutional investor actively, design some encouragement and restriction mechanism to a manager, reform and perfect the state assets management system, perfect regulation system and withdraw mechanism of security market and unifying the stock market progressively, set up powerful security payment mechanism of debts, strengthen restriction of creditor ' s rights of the banks, develop corporate bond financing, and so on

    本文以資本結構的基本理論為起點，對各種資本結構理論觀點進行概括，並從股權和債權兩方面分析了資本結構對公司治理的作用和影響效果；通過對國有上市公司的資本結構進行實證分析，揭示了我國國有上市公司的資本結構存在股權和債權結構不合理，股權內部構成和債權內部構成不合理等諸多問題，由此導致了公司治理各種機制的有效作用無法正常發揮，使得公司治理的效應不佳，並進一步對產生這種股權和債權治理效率低下的成因進行了深層次的分析；最後從宏觀和微觀層次，提出對國有股進行有步驟的減持並逐步實現其流通、改革與完善國有資產管理體制、積極培育機構投資者、完善證券市場的法規體系和逐步統一股票市場、建立強有力的償債保障機制、設計經理人激勵約束機制、強化銀行的債權約束、發展企業債券融資等政策建議。
  12. Because direct torque control requires very high performance of real - time, the popular microcomputer core dsp is used as controller in the design of hardware. its high speed of running is suitable for the experiment. in the main circuit, there is a highly integrated power element : ipm as inverter, which includes seven igbt, has high switch frequency and fault diagnosis function

    在本控制系統的具體實現上，由於直接轉矩控制對實時性要求很高，因此在硬體方面，採用了目前比較流行的數字信號處理器（ dsp ）作為系統的控制器，其處理速度高的特點正好符合本實驗的需要：在主電路中，本系統使用了集成度高的功率器件：智能功率模塊（ ipm ） ，作為逆變環節，其集成了七個igbt ，實現了高開關頻率逆變以及故障診斷的功能，從而使控制系統的體積大大縮小、控制更加靈活。
  13. Due to the direct torque control requires very high performance of real - time, the popular microcomputer core dsp is used as controller in the design of hardware. its high speed of running is suitable to the experiment. in the main circuit, there is a highly integrated power element : ipm as inverter, which includes seven igbt, has high switch frequency and fault diagnosis function

    在本控制系統的具體實現上，由於直接轉矩控制對實時性要求很高，因此在硬體方面，本課題採用了目前比較流行的數字信號處理器（ dsp ）作為本實驗的控制器，其處理速度高的特點正好符合本實驗的需要；在主電路中，本系統使用了集成度高的功率器件：智能功率模塊（ ipm ） ，作為逆變環節，其集成了七個igbt ，實現了高開關頻率逆變以及故障診斷的功能，從而使控制系統的體積大大縮小、控制更加靈活。
  14. Chapter 2 compares the differences of the current - fed converter and the voltage - fed converter used in induction heating power, then induces the power regulation methods of the series resonant inverter and compares the characteristic of these methods. and then, a capacitive pwm & pfm control method which is suitable for medium and small power out induction heating is given

    第二章對感應加熱電源中的電流型逆變器和電壓型逆變器作了比較分析，歸納了串聯諧振逆變器幾種常用的調功方法，對這幾種控制方法的優缺點進行了比較，提出了適用於中小功率感應加熱的容性pwm & pfm控制方法。
  15. The product adopts the new internationally popular technology of biological nanometer extraction, with the traits of big load of medicine, high absorptivity, high biological activity, etc

    本品採用國際新流行的生物納米萃取技術，具有藥物承載量大，吸收率高，生物活性高等優點。
  16. The product adopts the new internationally popular form of soft capsule, with the traits of big load of medicine, high absorptivity, high biological activity, safety and no side effect

    本品採用國際新流行的軟膠囊，具有藥物承載量大，吸收率高，生物活性高，安全無副作用等特點。
  17. Firstly, based on the utilization of the first and second law of thermodynamics, the ideal combined camot cycle model is set up. secondly, aimed at the insufficient of the classical thermodynamics analysis method, the popular method - - finite time thermodynamics analysis is applied to set up the model of endo - reversible combined carnot cycle. finally, the optimization relationships between the specific heating load ( shl ) and operating parameters and between shl and cop are conducted according to the characteristics of the function and investment of aht

    在首先利用熱力學第一、二定律分析方法的基礎上，建立了吸收式熱變換器的理想聯合卡諾循環模型，然後針對經典熱力學分析方法的不足，利用了當前很流行的有限時間熱力學分析手段，建立了aht系統內可逆聯合卡諾模型，根據熱變換器的功能、投資等方面的特點，導出了吸收式熱變換器比供熱率與操作參數、比供熱率與熱力學性能系數的優化體系。
  18. The main topics of the thesis are listed below : the current research status of real - time scheduling theories is discussed. popular scheduling algorithms, including static scheduling algorithms such as rate monotonic analysis ( rma ), deadline monotonic analysis ( dma ), and dynamic algorithms such as earliest deadline first algorithm ( edf ), least leisure first algorithm ( llf ) etc., and their strong points and weakness are discussed

    本文的主要內容如下：介紹了實時調度理論的發展現狀，分析了當前流行的各種調度演算法的優缺點，其中包括靜態調度演算法，比如速率單調調度（ rms ） 、截至時間單調調度（ dms ） ；和動態調度演算法，比如最早截止時間優先調度（ edf ） 、最小空閑時間優先調度（ llf ）等。
  19. According to the characteristics of the piston pump when it works with the diesel engine, the different outer load leads to different rotational speed and mechanics characteristics of the piston. in order to learn the property of the movement and mechanics of the piston but not experimentalize, simulink which is the simulation toolbox of matlab ( the most popular large - scale mathematic software ) is carried out to simulate the process of the movement and the receiving force of the piston

    根據發動機和全功率軸向柱塞泵的工作特性，柱塞泵在受到的外負載不同時，柱塞的轉速和受力情況就不一樣，為了能在不做實驗的情況下就能了解柱塞的運動特性和受力特點，利用現在最為流行的大型數學軟體matlab的模擬工具箱simulink對其進行了運動和受力的模擬分析。
  20. As various kinds of technology including computer, communication, control and cathode ray tube ( crt ) developing quickly, measurement & control network ( mcn ) tends towards networking, distributing, opening and interoperating, which is widely applied in many fields such as industry automation, intelligent building, processing control, etc. firstly, this paper makes a detailed study on the prevalent field control systems ( fcs ), including the characteristics of structure & technology and advantage, introduces several popular field buses, designs the model of field control system, and puts forward three effective methods to integrate between the mcn & information network under different situations

    計算機技術、控制技術、通信技術、圖形顯示技術和計算機網路的迅速發展，推動著測控技術向網路化、分散式、開放性和互操作性的方向發展，它被廣泛應用於工業自動化、智能大廈、過程式控制制等領域，大大提高了生產效率與經濟效益。本文首先分析了當前流行的fcs網路的結構特點、技術特點和優勢，介紹了幾種較為流行的現場總線，構建了企業生產的。 fcs網路模型，並提出了在控制網路和信息網路之間加入轉換介面、採用dde技術和使用統一的協議標準三種集成方式。
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